baber/WOPTO huggingface dataset:
Patent GB-891100-A (GB)
Title: Improvements in fluid-flow control gate valves
IPC: F16K3/30
Filed: 1960-04-27
Abstract: 891,100. Valves. GROVE VALVE & REGULATOR CO. April 27, 1960 [May 4, 1959], No. 14806/60. Class 135. A gate valve comprises a housing 10, Fig. 1, having flow passages 12 separated by a chamber 13, a valve gate 14 movable between open and closed positions in the chamber, seating means 23, 24 carried by the body and arranged to engage the sides of the gate so as to permit limited lateral movement thereof, operating means for the gate including a stem 25 attached to one end of the gate, and means for balancing the force of fluid pressure on the stem, the balancing means consisting of a plunger 26 connected by a rod 32 secured at one end to the gate and at the other end to the end of the plunger remote from the gate. The plunger is of hollow construction and the rod is screwthreaded into the latter and the gate 14, the plunger moving in a barrel 36 screwed into the housing; the resilience of the rod, which may be of steel, permits a limited lateral movement of the gate and in order to prevent the plunger from being expelled under great force from the end of the barrel should the rod 32 break, the end 42 of the plunger is arranged to be driven against a shoulder 47 provided by a reduced bore portion 41, the resultant swaging of the metal of the plunger or the shoulder absorbing the energy of the plunger. In a modification, instead of the shoulder 47 a pellet 49, Fig. 4, not shown, of soft metal may be located at the bottom of the barrel so that when struck by the plunger, the metal is extruded upwardly about the plunger, thereby absorbing the energy of the latter. The bottom of the barrel is open to atmosphere through a port 44 ; the latter port may be normally closed by a pressure-relief valve 46. Specification 731,100 is referred to.
Patent GB-778627-A (GB)
Title: Improvements relating to the preservation of fruit and other products
Inventor: MAURICE PHILIP
IPC: A23B7/154
Filed: 1954-05-20
Abstract: Fruits, particularly oranges, grapefruits, tangerines and lemons, and other agricultural products are treated with a phenolic mould-growth inhibitor which ordinarily tends to burn the surface of the agricultural product together with sufficient of a non-ionic suface-active agent to reduce this tendency.  The phenolic substances are exemplified by phenylphenols, e.g. ophenylphenol and its sodium salt, and mono-chlorinated or mono-brominated phenylphenols.  The non-ionic surface active agent may be a condensation product of an alkylene oxide with an organic compound containing a large non-polar group and an active hydrogen atom, e.g. a wool grease fatty alcohol or acid, or may be a compound having a large non-polar group, e.g. a long chain alkyl group, and an amino, amido or mercapto group.  The agricultural product may be dipped in an aqueous solution or dispersion of the mould-growth inhibitor and surface-active agent, and the solution or dispersion allowed to dry.  Aqueous preparations suitable for the treatment contain 0.25-1 per cent of the mould-growth inhibitor and 0.125-0.75 per cent of the surface-active agent.  An ionic surface-active agent, e.g. a long chain secalkyl sulphate or a higher alkyl benzenesulphonate, may be used to assist dispersion in water of an only slightly soluble non-ionic surface-active agent.  In the aqueous preparation may also be dispersed a substance such as paraffin wax, carnauba wax, beeswax or plasticized polystyrene which serves, after the drying of the preparation, to diminish evaporation of moisture from the product. Wrappers or packing materials for the agricultural products may be impregnated with a preparation of the mould-growth inhibitor and the non-ionic surface-active agent.
Patent GB-1302215-A (GB)
IPC: G03B21/62
Filed: 1970-03-26
Abstract: 1302215 Polypropylene sheets EASTMAN KODAK CO 26 March 1970 [2 April 1969 1 July 1969 2 July 1969] 14874/70 Heading C3P [Also in Division G2] Polymeric sheets suitable as rear projection screens made of polypropylene having a melt flow rate not exceeding 90, of thickness 20 to 80 mils and comprising two surface layers of relatively smaller crystalline spherulites and a core layer at least three fourths as thick as the sheet of relatively larger crystalline spherulites, the diameter of the larger crystals in the core layer being 15 to 45 microns and at least 60 weight per cent of the crystalline spherulites in the sheet having diameters of 5 to 20 microns, may be prepared by contacting a solid heat transfer surface maintained at 85‹ to 170‹ C. with a sheet of molten polypropylene for a time sufficient to cause the surface of the sheet to solidify and thereafter maintaining the surfaces at 85‹ to 160‹ C. until at least the centre threefourths of the sheet has become substantially crystalline. At least 2 weight per cent of a particulate crystal deforming material of particle size 5 to 50 microns and which is non-nucleating with respect to and has a refractive index within 0À05 units of the polypropylene may be uniformly incorporated therein. Specified crystal deforming materials are starch, sucrose octaacetate and cellulbse acetate butyrate. Finely divided calcium carbonate and dyes may also be present. The sheets may be roughened to eliminate reflections by sandblasting, etching or embossing. Examples describe the manufacture of sheets from (1) polypropylene and compositions thereof with (2) wheat starch, (3) sucrose octaacetate and (4) cellulose acetate butyrate.
Patent GB-620114-A (GB)
Title: Manufacture of ª‡,ª‡-di-(amino-phenyl)-ª‰,ª‰,ª‰-trichlorethanes
Filed: 1946-07-03
Abstract: a ,a -Di-(aminophenyl)-b ,b ,b -trichloroethanes are produced by the neutral or slightly acid reduction of the corresponding nitro compounds.  In examples, a ,a -di-(p-nitrophenyl)-b ,b ,b -trichloroethane reduced by (1) stannous chloride in glacial acetic acid saturated with hydrogen chloride (2) iron and acetic acid and (3) and (4) catalytic hydrogenation with mixed Raney nickel and 5 per cent platinised charcoal in mixed ethyl acetate and alcohol, or with platinic oxide in mixed glacial acetic and concentrated hydrochloric acid, yields a ,a -di-(p-aminophenyl)-b ,b ,b  - trichloroethane; and likewise (5) a  - (p - nitrophenyl) - a  - (m - nitrophenyl) - b ,b ,b  - trichloroethane reduced according to method (1) yields a  - (p - aminophenyl) - a  - (m-aminophenyl)-b ,b ,b -trichloroethane. Sulphates, oxalates and dihydrochlorides of the two bases are described and a further method of reduction, viz. electrochemical instanced.  The nitro-compounds used as starting materials are obtained by the nitration of a ,a -diphenyl-b ,b ,b -trichlorethane with e.g. fuming nitric, mixed sulphuric and nitric or glacial acetic and nitric acids, or acetyl nitrate, a ,a -di-(p-nitrophenyl) - b ,b ,b  - trichlorethane being separated from a  - (p - nitrophenyl) - a - (m - nitrophenyl) - b ,b ,b -trichlorethane by fractional crystallization.
Patent GB-769019-A (GB)
Title: Improvements in or relating to gates
IPC: E06B11/02
Filed: 1954-05-20
Abstract: 769,019. Gates. AUSTIN, F. B. May 4, 1955 [May 20, 1954], No. 14902/54. Class 45. A gate is reinforced by a bracing rod 8 which is shaped as shown and provided with nuts 15, 17 to accommodate sagging. The rod is made of rust-proof metal and may constitute a bar of channel section having end bolts welded thereto.
Patent GB-1430506-A (GB)
Title: Heat-resistand adhesive composition
IPC: C09J4/00
Filed: 1974-04-04
Abstract: 1430506 Laminates TOKYO SHIBAURA ELECTRIC CO Ltd 4 April 1974 [24 April 1973 6 Aug 1973 27 Sept 1973] 14934/74 Heading B5N [Also in Division C3] A heat-resistant adhesive composition comprises: 85 to 1 mol per cent of at least one N,N<SP>1</SP>-substituted bismaleimide represented by the formulae where X is an alkylene, cycloalkylene or arylene group, and A is an oxygen atom or a methylene carbonyl sulphonyl or amide (-CONH-) group; and correspondingly 15 to 99 mol per cent of at least one α-cyanoacrylate represented by the formula where R is a C 1 -C 6  alkyl group or a cyclhexyl group. The composition may include additionally: (1) at least one diamine in an amount corresponding to 0À7 to 0À02 equivalent of diamine per active double bond in the composition, the diamines being represented by the formula or where A and X have the meanings given above, (2) curing agent and (3) silane coupling agent. Bismaleimides: N,N<SP>1</SP>-hexamethylene, N,N<SP>1</SP>- p-phenylene, N,N<SP>1</SP>-methylene-di-p-phenylene, N,N<SP>1</SP> - oxy - di - p - phenylene, N,N<SP>1</SP> - 4,4<SP>1</SP>- benzophenone and N,N<SP>1</SP>-p-di-phenylsulphone bismaleimides. Part of the bismaleimide may be substituted with maleimide or N-substituted maleimide such as N-phenyl, N-hydroxyethyl, N-ethyl and N-(4-methoxy)-phenyl maleimides. α-Cyanoacrylates: ethyl and methyl, n-propyl, iso-propyl, n-butyl, iso-butyl and iso-pentyl α-cyanoacrylates. Diamines: 4,4<SP>1</SP>-diaminodiphenyl methane, 4,41-diaminodiphenyl ether, 4,4<SP>1 </SP>- diamino - diphenyl sulphone, benzidine, 4,4<SP>1</SP>-diamino dicyclohexylmethane, xylylene diamine, 1,4-diaminocyclohexane, hexamethylenediamine and 2,2-bis-(4-amino phenyl) propane. The curing agents may be specified tertiary amines and peroxides. Preferred silane compounds, as coupling agents when adhering organic polymeric material to inorganic material, are also given. The adhesive compositions may be used in such solvents as acetone, methyl ethyl ketone, dioxane, tetrahydrofuran, 1,2-dimethoxyethane and 2- methoxyacetic acid esters. The examples disclose adhesive compositions based on the bismaleimides and α-cyanoacrylates. The two surfaces of a polyimide film were coated with the pre-polymerized adhesive composition (together with some additional adhesive) and the adhesive-coated film was used to hold together two iron plates. Alternatively, glass cloth is impregnated with the composition for the purpose. Iron, copper or aluminium plates were bonded by coating one surface with the adhesive composition, bringing the plates together and setting the composition by polymerization. Copper foils were adhered to polyimide film thathadpreviously been coated with the adhesive composition. Electrically conducting carbon paper was bonded to films of polyimide, polyamideimide, polyparabanic acid or polyhydantoin respectively, by means of the adhesive composition. In a further instance an adhesivecoated film was wound at half lap about a PTFE rod.
Patent GB-663821-A (GB)
Title: Improvements in or relating to vane motors
IPC: B64C11/42
Filed: 1947-06-06
Abstract: 663,821. Semi-rotary engines. UNITED AIRCRAFT CORPORATION. June 6, 1947 [June 19, 1946], No. 14980/47. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 6, 1947.] Class 110(ii) [Also in Group XXXIII] In a hydraulic motor, or turning gear, having alternate vanes and abutments 26, 16, the ends of the working chambers are packed by rings 76, 78 having recesses 82 into which liquid, at substantially working pressure, is allowed to seep. The apparatus may be used as turning gear to alter the pitch of aircraft propellers, the ring 20 being provided with splines 24 for attachment to the propeller blade shank. Vanes and abutments are provided with packing 62, 58 which may be strips of leather, rubber or plastic material. Liquid flows into and out of annular chambers 28, 30 from conduits 32, 34 or 36, 38 under control of the aircraft pilot, or an automatic governor, and into one pair of working chambers 46, 48 or 54, 56. The chamber 28 communicates through passages 42, 44 in the member 14, with chamber 46-48, and chamber 30 communicates through passages 50, 52 with chambers 54, 56. In the example shown, for a right-hand rotating propeller, conduits 32, 34 are closed by flaps. During movement of the vanes, liquid vented from chambers 46, 48 passes through passages 42, 44 and chamber 28 into the propeller hub. Oil seal rings 66 of triangular cross-section and resilient washers 68 co-act with rings 76, 78 to seal the working chambers. Due to flexure of the rings 76, 78 the pressures behind the pressure chamber is greater than the pressure behind the chamber being vented. Packings 66a and 84 are provided.
Patent GB-1184484-A (GB)
Title: Methods and Systems for Protecting Metal Structures from Corrosion.
IPC: C23F13/04
Filed: 1967-03-31
Abstract: 1,184,484. Electro-chemical analysis. WALLACE & TIERNAN Inc. March 31, 1967 [March 4, 1966], No.14994/67. Heading G1N. [Also in Division G3] A cathodic protection system includes two reference electrodes 22, 23 of which the latter is generally similar to that described in Specification 1,184, 798 and the former comprises two copper electrodes 58<SP>1</SP>, 68 positioned in the base of a non-conductive vessel 60<SP>1</SP> which contains a copper sulphate solution 61<SP>1</SP> maintained saturated by an escess of copper sulphate crystal 63<SP>1</SP>. A semi-permeable conductive membrane 65<SP>1</SP> closes the end of vessel 60<SP>1</SP> and a non-conductive baffle 80 prevents polarization by directing the current between electrodes 58<SP>1</SP>, 68 to ensure proper superimposition of the effect of the current from a circuit 73 on the current flowing through membrane 65<SP>1</SP> and a resistance, Fig.2 (not shown). Choice and adjustment of the various circuit components determines the amount of current through membrane 65<SP>1</SP> shunted by circuit 73.
Patent GB-544447-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03F1/54
Filed: 1940-10-11
Abstract: 544,447. Thermionic valve circuits. STANDARD TELEPHONES & CABLES, Ltd., and JACOBSEN, B. B. Oct. 11, 1940, No. 15168. [Class 40(v)] In a thermionic valve circuit one or more of the valves has within its envelope a thermally responsive device which, upon failure of the valve, actuates contacts for giving an alarm, or for inserting a stand-by valve in the circuit. In Fig. 1 each of the valves has a bi-metallic thermal switch SX arranged so as to be in the filament heating circuit of the next valve. If valve V is in operation, the heat causes strip S to bend to open contacts X to de-energize the subsequent valves. Failure of valve V allows contacts X to close and energize valve V1, this serving to de-energize the subsequent ones, and so on. In modifications, the switches have separate heating coils which may be connected as anode decoupling resistances, or as grid biasing resistances connected to the cathode. Any suitable thermal switch may be used and it may energize an alarm circuit.
Patent GB-582366-A (GB)
Title: Improvements in or relating to mechanical toys
IPC: A63H19/00
Filed: 1944-08-10
Abstract: 582,366. Mechanical toys. TRAUTMANN, F. O. Aug. 10, 1944, No. 15194. [Class 132 (iii)] In a toy passenger railway or like transport system, mechanically or electrically operated, the operations of loading, starting, stopping and unloading are automatically carried out by subsidiary multi-cam or like devices. As applied to the stopping and loading of a toy train, Fig. 1, a brake lever beneath the train engages with the stop 42, and as the train stops a clockwork operated cam device is set in motion by the depression of a wire 6 and causes a lever 18 to lift a flap 21, Fig. 2, on the station enabling toy passengers 25 to roll down 'an inclined platform into the train. A snail cam 2 then lowers the stop 42 and the train is released, after which operation, the combination of a segmented disc 3, a lever 7 and a brake disc 9 stops the cam device with the cam in its original position. An unloading mechanism may be incorporated, Fig. 3, in which a cam stud 29, operating through a series of levers and a cam plate 36, displaces a lever 39 carried by the train, thus releasing toy passengers previously held on the transversely inclined floor of the train by a stop 40 carried by the lever 39. Different arrangements of the cam device are described, in one of which, the cam mechanism is carried in the vehicle itself. The loading, starting, stopping and unloading devices may be operated by electro-magnets controlled through a distributor, electrically driven and set in motion by the wire 6, Fig. 1. Specification 568,191 is referred to.
Patent GB-185487-A (GB)
Title: A new or improved case or holder for pencils and other articles
IPC: B43K23/00
Filed: 1921-06-01
Abstract: 185,487. Winsall, A. W. June 1, 1921. Pencil and like holders.-In a pencil, crayon, or like holder of the type in which an inner split sleeve b, having a. tapered part, is caused to grip the pencil or the like x by being moved longitudinally in an outer casing a, the sleeve is of substantially less length than the outer casing and has screw engagement with an extension c<2> of a head-piece c rotatable on the end of the casing.
Patent GB-1082590-A (GB)
Title: Method and apparatus for continuously treating a gas stream
Inventor: PAULSON CARL GUSTAV
IPC: B01D53/08
Filed: 1966-04-06
Abstract: 1,082,590. Screw conveyers. C. I. HAYES Inc. April 6, 1966, No. 15269/66. Heading B8A. [Also in Division B1] A screw conveyer for elevating spherical particles has a continuous concave track inclined to the vertical. As shown in Fig. 2, conveyer 82 having a helical track 130 on a column 90 receives particles at 136 and delivers them at 116, conveyance being achieved by clockwise rotation of the column so that the particles rise continuously as they keep rolling down to the lower side of the column.
Patent GB-726742-A (GB)
Title: Cigarette making machine
IPC: A24C5/42
Filed: 1953-06-03
Abstract: 726,742. Cigarette-making machines. KASTNER, K. June 3, 1953 [June 3, 1952], No. 15344/53. Class 130. In a machine wherein tobacco is compacted into cigarette shape by a sliding member 9 actuated by a system of connecting rods 14, 14<1>, 18 forming a pair of jointed parallelograms, and is then ejected by a plunger 11 into a tube 12 on which a cigarette paper tube is held by a movable finger 36, the parallelogram linkage is actuated by a rotatable cam 21 having a groove 32 and a cam face 33 which act in succession on a roller 20 attached to the rod 18 and the plunger 11 is actuated through a spring- loaded lever 24 by pins 30, 31 on the cam 21, the finger 36 being carried by a three-armed lever 34 spring biased to the tube engaging position and having arms 38, 40 adapted to be engaged respectively by one of the rods 14 and by the lever 24 to move the finger 36 to release the cigarette tube at appropriate times. In Fig. 4 the compacting member 9 and the plunger 11 are in the retracted position to allow tobacco to be inserted through an aperture 8, Fig. 2, into the tobacco receiving compartment 4 and the arm 38 of the lever 34 is engaged by a rod 14 to lift the finger 36 and allow a cigarette tube to be fitted on the tube 12. Clockwise rotation of the cam 21 by the handle 23, Fig. 1, causes the roller 20 to be moved by the slot 32 to move the compacting member 9 to press the tobacco into shape. During further rotation the cam face 33 causes the toggle mechanism to move beyond its centre point to release the pressure on the tobacco slightly, and the pin 30 contacts the lever 24 to move the plunger 11 to eject the tobacco through the tube 12. Shortly before the end of the plunger stroke, the lever 24 contacts the arm 40 of the lever 34 to raise the finger 36 and release the finished cigarette. Specification 464,948 is referred to.
Patent GB-215609-A (GB)
Title: Improvements relating to means for playing games resembling lawn tennis
IPC: A63B69/00
Filed: 1923-06-13
Abstract: 215,609. Hopwood, W. June 13, 1923. Outdoor games. - Relates to appliances for playing a game resembling lawn tennis of the type in which a rebounding surface is arranged above a stop net and consists in forming the rebounding surface of wire-work. As shown in Fig. 3 and on the. left-hands side of Fig. 1, the wires a are edged with stout wire i and clamped between pairs of bars j. The netting thus formed is bent round the member b of the supporting- frame and tensioned bv turn-buckle devices h. As shown in Fig. 4 and on the right-hand side of Fig. 1, the ends of the wires are held between clamping-bars m, n, attached to the frame member b by bolts k and wing nuts l. The supporting frame, Fig. 1, is formed with a gap o which may be provided with a pocket as described in Specification 176,724.
Patent GB-714009-A (GB)
Title: Improvements in and relating to the separation of sheets and the like
IPC: B65H3/08
Filed: 1952-06-19
Abstract: 714,009. Feeding sheets. GRAF, P. June 19, 1952 [July 7, 1951; March 1, 1952], No. 15441/52. Class 100 (1) Sheet separators; pile tables and supports.- Apparatus for separating individual sheets or the like from a stack 2 comprises a rockable frame 5 carrying a hollow shaft 11 fitted with rollers 12 and suckers 13, a gear 9 co-operating with a rack 10 whereby the shaft and suckers are rotated during the rocking of the frame to effect separation of the sheet from the stack. Feed rollers 15, 18, 19 are also mounted on the rocking levers 5. The levers 5 are rocked by means of cams 7 co-operating with roilers 8 on the levers 5. The arrangement is such that in the position shown in Fig. 1 suction is applied to the suckers 13 so that on lowering of the rocking levers 5 the suckers, in rotating in a clockwise direction due to the action of the rack 10 and pinion 9 arrangement, take the lowermost sheet which is grasped by the driven rollers 15 and fed between driven rollers 18, 19. At the same time a stop 17 restrains the remainder of the stack in the correct position. In an alternative embodiment (Fig. 5, not shown) separation of the sheets may be assisted by providing blowers acting between the separated sheet and the remainder of the stack, and the stack retaining stops may be rotatably mounted on the levers 5 and operated so that they push the upper edge of the remainder of the stack away from the separated sheet. Feed rollers.-The feed rollers 15, 18, 19 are all mounted on the levers 5 and are rocked therewith. The rollers 15 are further provided with cut out portions 34 so that the separated sheet is not positively grasped for feeding until the lowermost position of the levers 5 is reached, Fig. 2 (not shown).
Patent GB-976634-A (GB)
Title: Improvements relating to electric lamps
IPC: H01K1/46
Filed: 1961-04-28
Abstract: 976,634. Lamp caps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 28, 1961 [May 2, 1960], No. 15466/61. Heading H2E. An electric lamp having an Edison screw cap, comprises a threaded glass neck portion 2, a central contact 8 connected to a first lead wire 7 and a second lead wire 9, electrically connected to a side contact comprising a thin layer of foil 14, conductive on at least one side and deformed about the neck portion to assume the threaded profile of the neck portion. The foil may be aluminium having a maximum thickness of 50 or 100 microns and may have its ends 15, 16 (Fig. 4) wrapped round the bent down end 17 of the second lead wire 9 and pushed into a groove 8 in the lamp neck, running parallel to the neck axis.